update(k8s): add namespace metrics

examples/k8s/rbac.yaml

@@ -25,3 +25,25 @@ roleRef:
   kind: ClusterRole
   name: metalcheck-clusterrole
   apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: metrics-reader
+rules:
+- apiGroups: ["metrics.k8s.io"]
+  resources: ["pods"]
+  verbs: ["get", "list", "watch"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: metrics-reader-binding
+subjects:
+- kind: ServiceAccount
+  name: metalcheck-sa
+  namespace: metalcheck
+roleRef:
+  kind: ClusterRole
+  name: metrics-reader
+  apiGroup: rbac.authorization.k8s.io